What I have:

I am using SharePoint online which is part of Office 365.


What is the best size/ratio of a logo in this case?

(Rectangular one, in type of the old version of SharePoint looks bad and is too small).

Is square the solution? or something like 168 x 80 pixels?

closed as primarily opinion-based by Dylan Cristy, Ganesh Sanap, Dikesh Gandhi, Gaurravs, Aakash Maurya Jul 10 at 7:01

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.


64x64 .png file is recommended. SharePoint will downsize, but you want to avoid any extra scaling enter image description here


I've used square, and if it's too big SPO will automatically downsize to fit.


If you really want to change the logo size, you can refer to this article:


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